Boeing to fly low-altitude 777 tests

Boeing said Monday it will conduct flight tests above the Strait of Juan de Fuca and areas of Eastern Washington this week that will include low-altitude maneuvers at elevations between 600 and 700 feet.

Boeing said Monday it will conduct flight tests above the Strait of Juan de Fuca and areas of Eastern Washington this week that will include low-altitude maneuvers at elevations between 600 and 700 feet.

The flights, using a large 777-300ER and coordinated with the Federal Aviation Administration, will test upgrades to the jet’s Enhanced Ground Proximity Warning System, which warns pilots when they are on a course that comes too close to terrain.